public class AboutStrings{
public static void main(String args[]){
String s1="hello";
String s2="hel";
String s3="lo";
String s4=s2+s3;
//to know the hash codes of s1,s4.
System.out.println(s1.hashCode());
System.out.println(s4.hashCode());
// these two s1 and s4 are having same hashcodes.
if(s1==s4){
System.out.println("s1 and s4 are same.");
}else
System.out.println("s1 and s4 are not same.");
}
}
Somebody told me that, == operator compares references of
the objects.
In the above example even though s1 and s4 are refering to
same object(having same hash codes),
it is printing s1 and s4 are not same.
Can anybody explain in detail why it is behaving like this?
Thanks in Advance
RavuriVinod
Answer Posted / saket
because it is a string so it didn,t equate the reference .
for string u have to used s1.equals(s4) for correct
answer.........
| Is This Answer Correct ? | 1 Yes | 3 No |
Post New Answer View All Answers
How to sort double array in java?
What are the 4 types of research methods?
What is an argument java?
What data type is a string?
Explain about oops concepts.
Explain restrictions for using anonymous inner classes?
Can we define private and protected modifiers for the members in interfaces?
What is operator overloading. Is it is supported in java?
Why main method is called first in java?
What is arrays fill in java?
Is java ee a framework?
What is the difference between hashmap and hashtable in java?
What is tcp and udp?
What are the advantages of passing this into a method instead of the current class object itself?
What are the advantages and disadvantages of object cloning?